D'Agapeyeff cipher.

Terms

a(0) =75628a(1) =28591a(2) =62916a(3) =48164a(4) =91748a(5) =58464a(6) =74748a(7) =28483a(8) =81638a(9) =18174a(10) =74826a(11) =26475a(12) =83828a(13) =49175a(14) =74658a(15) =37575a(16) =75936a(17) =36565a(18) =81638a(19) =17585a(20) =75756a(21) =46282a(22) =92857a(23) =46382a(24) =75748a(25) =38165a(26) =81848a(27) =56485a(28) =64858a(29) =56382